baber/WOPTO huggingface dataset:
Patent GB-775035-A (GB)
Title: Epoxy resin compositions
Inventor: BEACHAM HARRY HOYT
IPC: C08G59/40
Filed: 1954-11-17
Abstract: An epoxy resin is cured with an amine-complexed alkyl titanate.  If desired, not more than half of the hydroxyl groups in the epoxy resin may be esterified with drying oil acids.  The alcohol of the alkyl titanate may contain 2 to 20 carbon atoms. Curing involves ester interchange with formation of the alcohol of the alkyl titanate and lower alcohols are preferred since they escape from the resinous compositions.  Amine complexing agents referred to are ethylene diamine, propylene diamine, ethanolamine, and b -aminoethyl ethanolamine.  Titanates of the ethanolamines are self-complexing. In examples: (1) a solution of an epoxy resin in a mixture of diacetone alcohol and ethylene glycol monoethyl ether is mixed with an isobutanol solution of a complex from tetrabutyl titanate and ethylene diamine.  An air-dried film was formed from the mixture on a steel panel. Other examples are similar, using the following complexes: (2) tetrabutyl titanate-b -aminoethylethanolamine; (3) butyl titanatetriethanolamine; (4) monoabietyl tributyl titanate - 1,3 - diamino - 2 - propanol, and (5) dioctyl dibutyl titanate-propylene diamine.  The epoxy resin of Example 4 was partially esterified with dehydrated castor oil fatty acids. Specification 748,441 is referred to.
Patent GB-1127668-A (GB)
Title: Device for truing the flanks of a grinding body for grinding gearwheels
Inventor: BRANDNER GERHARD
IPC: B24B53/075
Filed: 1966-07-25
Abstract: 1,127,668. Trueing grinding wheels. GROSSDREHMASCHINENBAU "7 OKTOBER", VEB. 25 July, 1966, No. 33374/66. Heading B3D.  A device for trueing the flanks of a grinding body 9 for grinding a gear-wheel z on a toothflank grinding machine operating on the divided hobbing principle comprises a carriage 5 for accommodating the grinding body displaceable at right angles to the direction of movements of a vertically reciprocable ram and disposed on the ram, and a housing 12 accommodating trueing tools (10, Fig. 1) on a carriage 15, each carriage being movable in the work plane of the grinding body, the carriage 15 being displaceably mounted on the ram for movement in a direction 151 at an angle a of 30 degrees with respect to the direction of movement of the ram and at an angle # of 60 degrees with radial direction of movement or the tangent of the movement path 14 of the trueing tools as projected into the work plane of the grinding body, the projected tangent being radial to the grinding body. The carriages are movable in unison by gear elements or, as shown, screw-threaded spindles 6, 16 on the ram 3 which is vertically movable on a base 1 of the machine. The trueing tools (10) are carried by levers 11 movable about axes 13 on the housing 12, the axes of the pivots being perpendicular to the planes of the flanks of the grinding body where the tools engage, the tools being movable along the arcuate paths 14 when the levers are moved by a pivotal drive. During grinding of the gear-wheel, the ram 3 is rapidly reciprocated. When the body 9 wears, an infeed is effected by rotation of the spindle 6 which results in a corresponding rotation of the spindle 16 so that the carriage 15 moves in the direction 151 towards the grinding body a distance a, equal to the movements of the carriage 5 in the direction 41 towards the gear-wheel z a distance s and the tools 10 assume their original position relative to the flanks of the grinding body. In another embodiment, the trueing tools are guided by rectilinear guide elements.
Patent GB-1112211-A (GB)
Title: Derivatives of the antibiotic tylosin
IPC: C07H17/08
Filed: 1965-08-04
Abstract: The invention relates to antibacterial antibiotics O-mycaminosyl tylonolide and dihydromycaminosyl tylonolide. O-mycaminosyl tylonolide is a white basic substance, M.P. 115-118 DEG  C.; soluble in chloroform, benzene, acetone and methanol, slightly soluble in ether and water; weakly basic, having one titratable group with a pK1a value of 8.0 as determined by electrometric titration in 66% aqueous dimethylformamide; contains 61.73% carbon, 8.78% hydrogen, 2.25% nitrogen and 27.24% oxygen; empirical formula C30H49NO10; in 95% aqueous ethanol, has U.V. absorption max. at 284 mm  and E1%1cm. = 315; has distinguishable bonds in the I.R.-spectrum at 2.78, 2.89, 3.37, 3.42, 3.68, 4.11, 5.82, 5.96, 6.15, 6.28, 6.87, 7.12, 7.25, 7.59, 7.88, 8.13, 8.46, 8.60, 8.79, 9.30, 9.47, 9.93, 10.16, 10.43, 10.79, 11.12, 11.54 and 11.97 microns; specific rotation for sodium D light of 8.11 degrees at 25 DEG  C. and 0.863% solution in methanol. O-mycaminosyl tylonolide is prepared by heating an aqueous solution of tylosin, desmycosin, macrocin or lactenocin at a temperature of about 70 DEG  C. at a pH of 1.5 to 2.5.  The reaction mixture is extracted with methylene chloride and the organic phase is discarded. The aqueous phase is adjusted to pH 6.0 with aqueous NH4OH and extracted with methylene chloride to remove unreacted antibiotic. The aqueous phase is adjusted to pH 9.0, extracted with methylene chloride and O-mycaminosyl tylonolide recovered from the organic phase. Dihydro-mycaminosyl tylonolide is obtained in a similar manner from dihydrotylosin, dihydro-desmycosin, dihydromacrocin or dihydrolactenocin.  A pharmaceutical composition comprises O-mycaminosyl tylonolide or dihydro-O-mycaminosyl tylonolide and a carrier.
Patent GB-639889-A (GB)
Title: Improvements in machines for the pressure casting of metals
IPC: B22D17/12
Filed: 1947-12-18
Abstract: 639,889. Casting-machines. VLTAVSKY, V. Dec. 18, 1947, No. 33440. Convention date, March 18. [Class 83 (i)] A pressure chamber 10, for injecting metal into a mould, having an upper injection piston 8 and a hollow plunger 12 for closing the gate 11, determining the volume of metal injected by adjustment, and expelling the residue, is characterized by the plunger 12 being moved down by frictional engagement of a slide 16 which is positively moved from the upper piston. With the parts in the position shown in the left half of Fig. 1, a plate 7, Fig. 3, engaging the rods 18 below their larger section 19, is turned about the piston 5 to release the rods and allow them, with the slide 16 and plunger 12, to fall to the position shown in the righthand half of the Figure as determined by stops 20 frictionally held on the rods 18. The chamber 10 is then filled with molten metal and a closed mould being applied to the gate 11, fluid is admitted to the cylinder 2 to move down the pistons 5 and 8. Adjustable stops 21 are fixed in such a position on the rods 18 that when the piston 8 reaches the molten metal a cross slide 6 thereon engages them and moves down the rods 18, slide 16 and by a friction bush 17, the plunger 2, until this engages the end of a guide rod 14 and the gate 11 is uncovered. Then the piston 8 injects the metal and the slide 16 slips on the plunger 12. The plate 7 is then turned to engage the rods 18 so that the pistons 5, 8 as they return lift the slide 16 and the plunger 12 to eject the metal residue. As the rods 18 move up the stops 20 are arrested by an adjustable nut 9 on the cylinder 2 to assume their original position. If the top of the plunger 12 requires cleaning the piston 5 is reciprocated without a charge in the chamber 10 and the friction bush 17 lifts the plunger 12, before it engages the flange 15, and thus causes its end to project from the chamber. If the friction of the bush 17 is insufficient a fork may be placed on the plunger 12 between the flange 15 and the slide 16. If such lift is not required a pin 37 may be inserted in a bracket 38 to engage the flange 15. In a modification the plate 7 is replaced by a plate 27, Fig. 2, on the slide 16 adapted to engage under a shoulder 41 of the plunger 12 to lift it for ejection of the residue as shown at the left side of the Figure. When the plate 27 is moved it releases the plunger 12 which falls until, as shown at the right-hand half of the Figure, the shoulder engages an adjustable stop 28 carried by the slide 16. During the initial downward movement of the piston 5 the slide 16 is held up by springs 25 but when the cross slide 6 engages the stops 21 it moves down and a friction bush 39 moves the plunger 12 down until arrested by the rod 14. Before the rising slide 6 engages fixed stops 24 on the rods 18, the plate 27 is moved to engage under the shoulder 41. The piston 8 may be spring mounted to avoid air being trapped in the chamber 10. The rod 14 may have cooling means and so cool the plunger 12.
Patent GB-507735-A (GB)
Title: Improvements in or relating to lintels
IPC: E06B9/17
Filed: 1938-11-18
Abstract: 507,735. Reinforced-concrete lintels. PICCOLIN AKT.-GES., GEB. Nov. 18, 1938, No. 33558. Convention date, Nov. 19, 1937. [Classes 20 (iii) and 20 (iv)] A lintel serving as a box or holder for a roller shutter comprises two reinforced-concrete members 1, 2 of semi-arched cross-section, placed side by side to provide a recess for the reception of the shutter roller. The member 1 on the inside of the building is of lesser depth than.the outer member, and is provided with a wooden strip 5 'to which a cover for the box may be secured. The ends of the members 1, 2 are provided with projecting wires (not shown), which are tied to secure the members together. The reinforcement comprises longitudinal bars 3 held together by ties 4, and metal ties are also provided at the top of each lintel member for suspending the latter in the wall. The inside of the lintel may be lined with insulating material, such as wood fibre, while the outer portion may be made from artificial stone.
Patent GB-784149-A (GB)
Title: Improvements in or relating to ventilating means for buildings, especially poultry battery houses
IPC: F24F7/02
Filed: 1954-11-20
Abstract: 784,149. Ventilators; ventilating shaft tops. SHEPHERD & SONS, Ltd., J., and SHEPHERD, R. Nov. 16, 1955 [Nov. 20, 1954], No. 33650/54. Class 25 and 137 A ventilator, especially for a poultry battery house, comprises a conduit 10, capped with a cowl having louvres 11, 11a to resist downdraught, secured above an opening in the roof, and a pivotal damper 14 operated by spring-returned means 16 anchored to the louvre 11, and by a pull-cord 21. The spring may be arranged to close the damper and the cord to open it. The cowl comprises a central curved plate 11 and similarly curved plates 11a extending from the open sides thereof in overlapping relationship.
Patent GB-572628-A (GB)
Title: Improvements in or relating to machine gun cartridge belts, bandoliers and similar cartridge carriers
IPC: F42B39/08
Filed: 1938-12-19
Abstract: 572,628. Ammunition belts. FRENCH & SONS, Ltd., T., FRENCH, G. F., and FRENCH, R. Dec. 19, 1938, No. 33672. [Classes 9 (i) and 92 (ii)] A cartridge belt for feeding machine guns or for use as a bandoleer comprises a flexible carrier a and cartridge clips of thin sheet metal or synthetic resin adapted at intervals to encircle the carrier, the clips being subjected to deforming pressure to fix them to the carrier and to shape them to hold the cartridges. As shown, the clip comprises a metal blank, Fig. 2, the parts b<1>, b2 of which are bent over the carrier, Fig. 6, and pressed to horseshoe shape, Fig. 7, with the portions b<3> of the wide part b<2> forming the cartridge holding clips which are open at the bottom for the passage of the ejection member on the gun. The portion b<1> of the blank may be slotted, Fig. 14, to permit of threading the carrier through the clip. The flexible carrier portions between the clips permit of ready folding of the belt, Fig. 17. If made of the usual webbing, the carrier may be reinforced by fine wire to stiffen it transversely and may be treated with anti-mildew preservative. In place of webbing, braided or knitted tape or lengths of wire or thin ribbon metal may be used.
Patent GB-1466771-A (GB)
Title: Comparator-keyed oscillator
IPC: G05F1/455
Filed: 1974-07-31
Abstract: 1466771 Grating oscillations RCA CORPORATION 31 July 1974 [9 Aug 1973] 33691/74 Heading H3T [Also in Division H2] In a circuit having first inputs of differential amplifiers 115 and 117, Fig. 1 connected together at 101 for receiving an input voltage VIN to be compared to first and second reference voltages VH1, VL0 applied to second inputs 103, 105 of the differential amplifiers 115, 117 a bi-stable memory element 119 is controlled by the outputs from the differential amplifiers to be set and reset in response to the input voltage at 101 being greater or less than the first or second reference voltages and a circuit including an oscillator 121 is responsive to the memory ouput for supplying recurrent pulses when the output signal from the memory 119 is at one of its two levels. The comparator keyed oscillator 100 can be formed as an integrated circuit. In a transistor circuit (Fig. 2, not shown), as disclosed in Specification 1,453,038, the dead-zone comparator 113 includes transistor differential amplifiers 115 and 117 and the bi-stable memory element 119 formed by a reciprocally coupled transistor stage (230) and a differential amplifier comparator (240) providing an output stage of the bi-stable element 119, the AND gate 123 is provided by transistors (244 and 261) the junction (247) between these being fed from the output of the relaxation oscillator 121, and to the input of driver amplifier 125 which is provided by transistors (251, 257). In addition to the circuit disclosed in Specification 1,453,038 an output amplifier 127 is formed by transistors (253-256) providing the keyed oscillations at output 107. Keyed oscillations complementary to those at 107 can also be obtained from an output transistor (258) at terminal (259). Terminals (259 and 107) can be connected together so that the transistor (258) discharges the capacitance at the emitter of the output transistor (256). Instead of using AND gate 123 the output from the bi-stable 119 can be used directly to control the operation of the oscillator such as to control the power supply thereto by energizing or inhibiting the oscillator. The relaxation oscillator 121 can be a transistor circuit (Fig. 3, not shown), which is also disclosed in Specification 1,465,540. The output of the comparator keyed oscillator 100 can be used to turn on an SCR (501, Fig. 5, not shown), or via a transformer (604, 606, Fig. 6, not shown), to turn on a triac (601) in A.C. load switching circuits. In a rectifier circuit (Fig. 4, not shown), for supplying D.C. B+ from A.C. for the power supply of the comparator keyed oscillator 100 which can be included in the integrated circuit 100 transistors (406, 407) are connected as diode rectifiers, a lateral transistor (408) is connected as a diode rectifier and a limiting circuit (410) including two transistors (411, 412) limits the output D.C.
Patent GB-878863-A (GB)
Title: Improvements relating to photographic film assemblies
IPC: G03C8/42
Filed: 1958-10-22
Abstract: 878,863. Photographic film assemblies. INTERNATIONAL POLAROID CORPORATION. Oct. 22, 1958 [Nov. 14, 1957], No. 33823/58. Class 98(2) An assembly comprises two or more film units each having a photo-sensitive element and a second element for superposing thereon preferably comprising the respective materials for formation of a positive silver print by transfer reversal, one unit being arranged innermost with the other unit or units arranged outwards of it, so as to make up a stack of the photosensitive elements and a stack of the second elements; one element of each unit having a leader, and each element being connected at its leading end to the other element of the unit by members disposed so as to permit sequential removal of the units starting from the innermost one by sequential pulling of the leaders. The two elements of one of the film units are shown separately, thus Fig. 3 for the first one has photo-sensitive sheet 16 with flanges 20 and trailer 18; and the second, Fig. 1, print-receiving sheet 22 placed beneath an aperture 25 of carrier sheet 24 having flanges 26 to co-operate with the flanges 20 for registration purposes, and having also processing fluid container 32 and leading end section 28 which in the assembly is placed within envelope 62 of trailing end section 30 of the next second element, while the pair of elements, Figs. 3 and 1, are themselves united by connecting elements 36 of Fig. 1. Of other Figures, not shown, Fig. 2 is for a camera loaded with a single one of the units in open position for exposure and having pressure applying rollers whereby withdrawal of such unit by leader 28 will crush the container, spread the fluid and simultaneously superpose the elements to effect processing; and Figs. 4-6 show magazine formation for a three-unit assembly, with various features to facilitate successive exposure and withdrawal of such individual units. Specification 878,862 is referred to.
Patent GB-335791-A (GB)
Title: Improved means for attaching fasteners to gloves and other articles
IPC: A41H37/00
Filed: 1929-11-07
Abstract: 335,791. Newey Bros., Ltd., and Newey, J. C. Nov. 7, 1929 : Setting or removing snap fasteners.-A tool for attaching snap fasteners to gloves &c. consists of two parts, adapted to hold the two portions of .the stud part of the fastener in position for eyeletting on to the glove. The stud part consists of a flanged dome a and an eyeletting cup b. The tool c carries a shouldered pin e which is adapted to engage the neck of the, stud a and is kept in position by the split ring g. The stud a is gripped in the upper part of the tool which on closing spreads the cup b in the neck of the stud.
Patent GB-636985-A (GB)
Title: An electric alarm device in connection with safety-chains for doors
IPC: E05B45/06
Filed: 1947-12-23
Abstract: 636,985. Door-chain fastenings. MARTENS, D. G. Dec. 23, 1947, No. 33933. Convention date, May 3, 1939. [Class 44] [Also in Group XXXVIII] In a safety-chain fastening for doors incorporating contacts for operating an electric alarm (see Group XXXVIII) the guiding member 1 is a rectilinear casing the front wall of which has a substantially U-shaped slot adapted to receive the sliding member 5 attached to the chain 2. One branch 4<SP>1</SP> of the U-shaped slot, intended for non-alarm daytime use, extends in the normal manner from the insertion passage 6 towards the gap between the door D and door-frame K, while a second branch for night use is of angular shape extending from the insertion passage 6 in a first portion 4 parallel to the door-gap, i.e., transverse to the chain pull, and thereafter in a short second portion 4<SP>11</SP> parallel to the branch 41 and provided with contacts which operate the alarm when bridged by the member 5. For night use the member 5 is retained in the position shown by a spring plate behind the slot 4<SP>11</SP>, and opening the door tautens the chain causing member 5 to move along the slot 4<SP>11</SP> and operate the contacts. This action is made more sensitive by the provision of a small-angular projection 14 which engages the chain to tauten it for very slight movement of the door D. If the normal daytime use is not required the upper slot 4<SP>1</SP> may be omitted from the guiding member 1 (Fig. 3, not shown).
Patent GB-1291299-A (GB)
Title: Curable epoxide resin mixtures
IPC: C08G59/14
Filed: 1970-07-13
Abstract: 1291299 Epoxy resin mixtures CIBAGEIGY AG 13 July 1970 [29 July 1969] 33961/70 Heading C3B [Also in Division C2] Curable mixtures comprise: (I) a compound containing at least two epoxide groups per molecule and (II) a heterocyclic N-glycidyl or N-#-methylglycidyl compound in which R is H or methyl; R 1  is H or an aliphatic, cycloaliphatic or aromatic radical optionally substituted by halogen atoms or heterocyclic rings or interrupted by O, S or N atoms; R 2  is an alkyl, alkenyl, haloalkyl or phenyl radical optionally substituted by alkyl or halogen; R 3  and R 4  are H or C 1-4  alkyl radicals, and (III) an epoxy resin curing agent. I may be a glycidyl ether of bisphenol A, 3- (3<SP>1</SP>,4<SP>1</SP> - epoxycyclohexyl) - 2,4 - dioxaspiro(5,5)- 9,10 - epoxyundecane, tetrahydrophthalic acid diglycidyl ester or triglycidyl isocyanurate. Specific examples of II for which preparative details are given (see Division C2) are N- glycidyl - oxazolidin - 2 - one, N - # - methylglycidyl - oxazolidin - 2 - one, and N - glycidyl derivatives of 5-chloromethyl-, 5-methyl-, 4- ethyl-, 4,4-dimethyl- and 5-phenyl-oxazolidin- 2-one. III exemplified is hexahydrophthalic anhydride.  Uses.-Castings, coatings and adhesives.
Patent GB-447838-A (GB)
Title: Improvements in or relating to echo sounding apparatus
IPC: G01S7/526
Filed: 1934-11-26
Abstract: 447,838. Echo - sounding apparatus. MARCONI INTERNATIONAL MARINE COMMUNICATION CO., Ltd., Electra House, Victoria Embankment, and HINTON, N. P., 57, Broughton Avenue, Finchley, both in London. Nov. 26, 1934, No. 34010. [Class 118 (ii)] In a receiver for an echo-sounding apparatus employing an amplifier, the amplification factor of which can be varied by adjusting the anode potential to the valves, the grid bias of the final valve varies with the anode current of the previous stages so that the anode current of the last valve remains approximately constant. As shown in the Figure, the anode supply to the valves is fed from supply S through resistance r2 which is variable so that the amplification factor of the amplifier can be adjusted for shallow or deep depths. The anode current flows through biassing resistance r3 so that the grid bias potential to the final valve 7 varies with the total anode current and the anode current of the last valve remains approximately constant. The anode potential to the first valve may be separately adjusted by resistance r1 and a protective spark-gap SG is provided. The battery B may be provided to supply negative bias to the last valve when the depths are very shallow and the anode potentials are much reduced.
Patent GB-410430-A (GB)
Title: Surgical support
IPC: A61F5/03
Filed: 1933-12-04
Abstract: 410,430. Surgical garments. CAMP & CO., S. H., 109, West Washington Avenue, Jackson, Michigan, U.S.A. Dec. 4, 1933, No. 34048. Convention date, Dec. 14, 1932. [Class 141.] An abdominal belt for positioning ptosed organs, comprises a front portion 1 positioned against the abdominal wall, upper retaining side sections 5 the curved lower edges of which are located over the iliac crest and follow the anterior superior spine, and lower side sections 7 having curved upper edges secured to the curved edge 8 of the upper side sections 5, the curvatures of the meeting edges differing so as to provide, when joined, hood-like portions to relieve pressure over the iliac crests. The belt further comprises rear sections 11, 12, which are connected to the upper side portions 5 above the iliac crest by means of adjustable straps 20, and to the front portion 1 below the iliac crest by means of adjustable straps 16 connected through inexten. sible sections 10 superimposed over the lower side sections 7.
Patent GB-503640-A (GB)
Title: Improvements in or relating to closures for the filling orifices of tanks
IPC: F01P11/02
Filed: 1937-12-09
Abstract: 503,640. Closures. LEEDHAM, F. B. Dec. 9, 1937, No. 34060. [Classes 21 and 125 (iii)] A closure for the filling aperture of a petrol tank, radiator or like liquid receptacle comprises a part b, Figs. 1 and 2, formed integral with or secured to the filling neck a and a pair of spring-controlled flaps d hinged at c and disposed so as to close the aperture c, the flaps being opened by the insertion of a nozzle h and returned to the closed position under the action of the springs g. A rubber or like sealing ring f is secured to the underside of the flange b. The flaps d may overlap and a sealing strip be secured between the overlapping portions.